Repeatedly ignitible rod



L. RADO REPEATEDLY IGNITABLE ROD Filed Aug. 5, 1947 INVENTOR ATTORNE @a July 25, 1950 Patented .uy 25, j 1`95' UNIT-ED STATES PATENT 2,516,416 vREPEATmimi? IGNITIBLE Ron Leopold Rade, London, England Y y Application August 5, 1947., Serial No. 766,331 v f 5 In Great Britain May 19, 1941 (Cl. 4442)l 4 Claims.

,K vThe present invention relates to an fignitable member, which, unlike an ordinary match, can be lrepeatedly ignited, and which is'hereinafter called an ignitable rod.

A rod repeatedly ignitable by friction has often been proposed, therod beingprovided axially with an igniting mass. After ignition-has been produced by rubbing the igniter, the organic substances begin to burn, but after the flamev has been extinguished, the igniter will be found to lie deeperin the organic mass, i. e., below the end thereof, or at least flush with the end. Thus, if itis desired to make repeated use of the rod friction of the organic mass only can be Ibrought about because, owing toits position` in said mass, the igniter cannot be subjected to sufficient fric' tion to cause itsl ignition.

The present invention eliminates this disad- Vantage by providing a repeatedly-ignitable rod made of any suitable inflammable materials, for instance a base of cellulose, nitro-cellulose, metaldehyde, or the like, and an easily ignitable substance, for example of phosphorus base with the i known oxidising and combustion and retarding substances, as a core-like igniter in the rod, the igniter being movable in a forward direction,y like the lead in a propelling pencil, in order that on repeated use the igniter can be moved through the rod so that its end projects out of the rodto permit of its being rubbed against a rough surface to produce the ignition of the igniter and of the rod.

For the reason that the igniter burns more rapidly than the youter part of the rod, it will be necessary in due course to rei-lll the rod with a new igniter, and when the rod itself is burnt away it must be replaced in its holder by a new rod.

In order to move the igniter forward out of "the rod, use can be made of one or the other well known propelling pencil constructions in which, by mechanical means, the igniter like the lead of such a pencil, will be pushed forward out of the ignitable rod.

The accompanying drawing shows one constructional form of the invention.

On the drawing:

Figure 1 is a sectional view of the ignitable rod with its holder and with a cap provided for the protection of the rod.

Figure 2 shows the ignitable rod with its holder and also shows the protective cap removed from the holder.

Referring to the drawing:

The combustible rod I which is made of organic substances, is formed with an axial bore adapted to receive the easily inammable igniter 2. The repeatedly-ignitablev rod I is fixed inthe part 3 of a holder or turntable, for examplejby screwing, the holder alsocomprising a handle 4 which, by means of a screwconstruction, on be. ing turned moves forward a wire-like -device y5 which pushes the igniter 2 the required; distance forward out of the rod I. This construction may be considered as being alturntable. The device comprises a covering cap 6 to which aI striking plate 'I is attached.

In order to avoid friction when the igniter-2 is moved in the rod and also the better to isolate the ignitable mass, it will be of advantageto cover the igniter by a lacquer which hardens, for example, a lacquer of a resin or cellulose mixture.

To insure that the ignitable rod I does` not break on rough handling it can be provided with a movable case (not shown in the drawing) and which always leaves free only the end of the rod required for use. Y Y

As a burnt-out rod and igniters can bere; placed in the holder by fresh rods and igniters, it would be of advantage to provide a `place to store these reserve parts. This can be arranged. by the provision of a space in the holder in the same way that reserve leads are held in propelling pencils. f j v f Y In order to producethe tube-like infiamma-ble rod I oforganic substances, the followingmethod may be adopted. The organic substances are produced in sheet form and then rolled upon a mandrel in as many layers as required, the layers being stuck together during the rolling operation. After removal from the mandrel the tube is ready and, on hardening, will be found to have great resistance.

The sheets of organic substances can be produced by the use of fibrous material such as ce1- lulose bre mixed with fibrous-free organic substances such as dissolved nitro-cellulose.

Fibrous materials can also be used if, previous to the rolling operation they are impregnated with hydrocarbon substances such as paraffin, resin solution, nitro-cellulose solutions, or mixtures of these substances.

The adhesive such as resin for example used for sticking the layers of organic substances during rolling must naturally also be of inflammable nature, and heat and pressure can also be used in the production of the said tubes to facilitate drying.

The mandrel on which the tubes will be produced must have the same diameter as the igniter part of the rod.

If resin is also present this will serve also as an adhesive to stick together the layers of sheet material on producing the tube under action of heat and pressure.

The production of repeatedly ignitable rods provided axially with a wick-like igniter was previously known and is described for example, in British Patents Nos. 401,905 and 409,29 1.

In the British Patent No. 401,905 is' described the production of such" ignitable rods, wherein, amongst other propositions, the combustible mass while in a plastic condition, is formed into the" shape of tubes, and after insertion of; theY ignite'r in the tube, the tube is pressed directly around it. In the British Patent No. 409,291 i`s`"describ`ed" the manufacture of a rod consisting of afcom:y

bustible mantle with a tubular hole ofadiameteiii suicient to allow the core to slide in the combustible mantle.

While I have disclosed herein the bestI form of the iiive'nton'y knowny tov me at' th'epresent' time, Ifdes'i'le itftfbe' understood? that ll; reservef the rightl to: make changes and modifications the herein describedl embodiment of.' the# invention provided such changes fall-within the scope-of the 'following` claims;

What; is claimed is':

1f.- A tubular repeatedly' ignitable member or rd" consisting' of inii'ammable' material' having a threaded.' outer W'all atithelower end? thereof', said material being nitrocellulose provided internally with a corelikeigniter, said' corelike iiter being mounted for reciprocating movementwithi the member, andI bei-ng made'oifan easily ignitable'v phosphorus base adaptedfon being ubbed against a rough surface toA ign-ite and thereby cause the' ignition o -v the adjacent end of they surroundingl inflammable material, turntable meansithreadediy engages with saidfmember or rd, awirelikedevice oneend-ot whichlisad'apted to ride within said member or ro'd for' engaging c'o'i'elike igniter and theI other' end=`of whichi is carried by said turntable whereby upon rotating saidfiturntable' the coreIileig-rriterf is urgedlf'orwardly'outi of the rod so that itsv end' canlbeL projected. anoheld in a forwardposition out the adjacent-end ofthe r'od when engaged Y 2. A tubular repeatedly ignitable member or rdconsisting of inammable material of organic substances havingi a threadedlouter' wall-Lat the 4 lower end thereof, said material being nitroceliulose and provided internally with a core-like igniter made of an easily ignitable phosphorus base mounted for reciprocating movement therein, 5 and adapted on being rubbed against a rough surface to ignite and thereby cause the ignition of the adjacent end of the surrounding iniiammable material, a turntable annularly threaded andfengageable with the threads of saidy tube, and 1o a wire-like device one end of which is connected to said turntable and the other end of which is positioned to abut the lower end of the corelike; igniter.' forwardly out of said tube so that its end. can be projected and held in a forward 1'5 positioio'utof the adjacent end of the rod when desired; saidA nitrocellulose of said rod being in Sheet? form;

3.v A. repeatedly ignitable member or rod as claimed in claim 2 characterized by the fact that 20 the sheets of nitrocellulose are produced by the use offfibrous cellulose mixedwith fibrousef-iee dissolved'L nitrccelhilose.`

` 4. A'v repeatedly ignitablememberlor rodi com sisting of inflammable material of! organic' sub'- g5 stances ha-Vinga threaded outer' Wa-lllin tlielcwer end thereof, said" substances beingf nitrocellulose; a core-like ignter 'receivable' within said' member or rodbeing 'mounted for recipr'oc-:atingmove*` ment therein, turntable means threadedly err-l g gaged with said.L1 memberor'rod atthe-.lbwerend thereof, a wirelike device one endi of `whichis adapted to ride within saidimernberY orrodfand engage said? corelike igniter and the other end"- oi which is connected t'o'said 'turntable whereby 35VL upon rotation` of said turntable core'l'ike ig-niterr isf positioned forwardly out of said'I rod so:l that* its end can be projected and heldin a`- forward`1 position outwardly adiac'ent endof-saidrodwhen desired, saidrod being oil organici sub'stancein sheet form;

LEOPOLDRAD:

REFERENGE Se CITED' Number Name Date;-y

1,903\,838. Ringer AApr.. 183, 1933' 50 2,093,516: Formaat ai; mw sepuer, 1937? 

